18013870

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{97}}^1\times {\mathrm{379}}^1$

素因数の和:497

約数の個数: 48

約数和(自身を含む): 38208240

約数和(自身を除く): 20194370

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 97, 98, 194, 245, 379, 485, 490, 679, 758, 970, 1358, 1895, 2653, 3395, 3790, 4753, 5306, 6790, 9506, 13265, 18571, 23765, 26530, 36763, 37142, 47530, 73526, 92855, 183815, 185710, 257341, 367630, 514682, 1286705, 1801387, 2573410, 3602774, 9006935, 18013870]

約数ペア:

[(1, 18013870), (2, 9006935), (5, 3602774), (7, 2573410), (10, 1801387), (14, 1286705), (35, 514682), (49, 367630), (70, 257341), (97, 185710), (98, 183815), (194, 92855), (245, 73526), (379, 47530), (485, 37142), (490, 36763), (679, 26530), (758, 23765), (970, 18571), (1358, 13265), (1895, 9506), (2653, 6790), (3395, 5306), (3790, 4753)]